Who knew the Devil's domain was a hot spot for tubing?

A lush indoor jungle fills this bustling Madrid transportation hub.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Stolen goods adorn the organ at Old North Church.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

The massive machine creates cracking displays of indoor lightning.

Ice cream stand, snack bar, and time capsule of milk conveyance.

Narrowest house in Boston.

The site of Paul Revere's historic two lantern warning.

Experience the hysteria of a 17th century witch hunt through goofy reenactments and wax dummies that should probably be burned at the stake.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

Two thousand artifacts from around the world collected by one woman who loved to travel.

The California capital city once stood 10 feet lower than it does today.

One part local history, 99 parts gruesome haunted house.

A tribute to the truly loyal dog who waited outside a hospital for his owner to come back.

A wunderkammer hidden on the top floor of the Hartford statehouse.

Public outcry led to this bridge's unique character which celebrates a giant frog battle and also sewing.

Every equinox this Maya pyramid puts on a spooky ancient light show.

The final resting place of the great navigator, or maybe his brother.

A curious carving hides on a marble column in the Mosque-Cathedral of Córdoba.

The Victoria-era quarantine station for Sydney.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.